REMOVAL & INSTALLATION
See Figure 1
Coil springs are under considerable tension. Be very careful when removing and installing them; they can exert enough force to cause serious injury.
- Raise and safely support the truck under the frame rails. The control arms should hang free.
- Disconnect the shock absorber at the lower end and move it aside. Disconnect the stabilizer bar from the lower control arm.
- Support the cross-shaft and install a spring compressor or chain the spring to the control arm as a safety precaution.
- Raise the jack to remove the tension from the lower control arm cross-shaft and remove the two U-bolts securing the cross-shaft to the crossmember.
The cross-shaft and lower control arm keeps the coil spring compressed. Use care when you lower the assembly.
- Slowly release the jack and lower the control arm until the spring can be removed. Be sure that all compression is relieved from the spring.
- Remove the spring.
- Installation is the reverse of removal, with the following recommendations: Position the control arm cross-shaft on the crossmember and install the U-bolts. Be sure that the front indexing hole in the cross-shaft is aligned with the crossmember attaching saddle stud.
- Tighten the U-bolts to 45 ft. lbs. (61 Nm) for 1970-75 1 / 2 ton trucks, to 110 ft. lbs. (149 Nm) for 3 / 4 and 1 ton models; all other trucks tighten to 85 ft. lbs. (115 Nm). Have the front suspension alignment checked.